A water basin fixed to a wall or floor and having a drainpipe and generally a piped supply of water. A cesspool. A sinkhole. A natural or artificial means of absorbing or removing a substance or a form of energy from a system. A place regarded as wicked and corrupt: That city is a sink of corruption. Origin of sink
Card shark, especially in American English,is often simply a term for someone who spends a lot of time playing cards. Both terms are sometimes hyphenated, and theyâre sometimes condensed into a single compound wordâcardsharp or cardshark. But the two-word, unhyphenated forms are more common in edited publications.
Biology of whale sharks (Rhincodon typus). Whale sharks are the largest sharks of their kind, but despite their size they are completely harmless. Their behavior is characterized by slow swimming movements in their search for food on the water's surface.